Machine



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B. BUTLER.

STREET SANDING MACHINE. No; 337,300. Patented Mar. 2, 1886.

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BEAUMAN BUTLER, OF ST. JOHNSBURY CENTRE VERMONT, ASSIGNOR OF ONE-HALF TOCORTES T. BRIGHAMS, OF SAME PLACE.

STREET-SANDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 337,300, dated March 2,1886.

Application filed July 23, 1885. Serial No. 172,453.

To all whom 216 may concern Be it known that I, BEAUMAN BUTLER, acitizen of the United States of America, residing at St. JohnsburyCentre, in the county of Caledonia and State of Vermont, have inventedcertain new and useful Improvements in Street-Sanding Machines; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to letters or figures of reference markedthereon, which form a part of this specification.

My invention has reference to machines for sanding pavements,sidewalks,&c.; and it consists in theimprovementshereinafter describedand explained, and then sought to be defined by the claim.

In the accompanying drawings, forming a part of this specification,Figure 1 is a plan view of the sanding-machine embodying my improvement.Fig. 2 is a front elevation of said machine, a part or portion thereofbeing represented in sections. Fig. 3 is a side elevation of saidmachine, also partly in section; and Fig. 4 is a detail perspective viewof one of the castings forming in part the deliveryspouts ordischarge-openings.

Upon any suitable frame work composed of bars A is mounted a receptacle,B, the bottom of which is formed to present two converging troughs orhoppers, O G, the front trough, O, of which is of somewhat largerdimensions or o 5 capacity than the rear trough, O. The bottom of eachtrough is provided with a series of smaller plates, a a, which convergeor incline toward openings 12 I), located in the bottom of said trough.

By reference to Fig. 1 it will be observed that the receptacle B isextended sidewise or transversely at its lower portion, in order thatthe transverse width of the trough O at its lower portion will begreater than that of the 5 trough O at its base or lower portion. Itwill be noted that the additions or extensions of the front trough makeprovision for two additional discharge or delivery openings, b.

c 0 refer to two parallel bearing-boxes, which are secured on the frontwall, d, of the trough C, and within said bearing-boxes 0 a bear the (Nomodel.)

ends of a short transverse horizontal shaft,

D, upon which are rigidly secured the upper ends of two depending arms,e, the freeend of each of which is located in front of and immediatelyopposite the two central openings, 1) b,

of the front trough, O. The lower or free end of each arm e is providedwith an eye or opening for the. pivotal connection of the loop e,secured to the front end of a horizontal slide 6 or cut-off, E, whichplays in guides e beneath one of the openings 1), to control the passageof the sand through the same. Of course, it will be comprehended thatthe said slide or cut-off is perforated, and it may properly operate for6 the purpose intended. A horizontal beam, F,

is rigidly secured transversely beneath the front hopper, O, by means ofbrackets f, (see Fig. 3,) and the position of said transverse beam, asillustrated in said figure, is slightly at one side of thedischarge-opening b of said hopper. The said beam has located thereinthe rear ends of two bolts, f, which extend horizontally toward thefront of the machine beneath the hopper. A second beam, G, similar tothe beam F, is located parallel therewith and at some distance inadvance of the same, but is supported in position by being pierced bythe boltsf, the ends of which project beyond the front face of the saidbeam G, for the engagement of thumb-nuts g, by means of which thelast-mentioned beam is adjusted to and from the beam F.

By reference to Fig. 3 it will be observed that the beam G is locatedslightly to one side of the opening I; of the front trough.

The beams F G are provided on their adjacent faces with a series ofmetallic castings, H H, which are rigidly secured in position, and areeach of a shape approximating that of a triangle. Each of said plates HH is provided with a vertical web or body, h, having perforations h forthe passage of the bolts or other securing devices by which it isattached to its beam. Each of said plates H H is further provided on itsconverging upper edges with a curved flange, h. It will be noted thatthe plates H H are located in line with and immediately opposite eachother, so that their respective curved flanges h extend toward rco eachother, and thus tend to conjointly present inclined delivery grooves orchannels, the

apex of which is located immediately below one of the discharge-openingsb of the trough (l. A vertical lever, I, is fulcrumed upon the front ofthe machine, and has its lower end connected by a link, i, to one of thedepending arms e, in order that the cut-offs E of the two centralopenings may be simultaneously operated thereby.

The two openings 6 b are provided with operating devices, cut-offs,beams, and adjustable delivery-plates, similar to the arrangement anddevices described with reference to the front trough, 0. It willtherefore be sufficient to state that one of the arms e of the reartrough is connected by a rod, j, to one end of a lever, M, and thusinsures the independent operation and movement of the cut-oil slides Eof the central opening. b, and the openings b. The outer openings 11 areprovided with cut-off slides E, which are operated by independent leversJ J.

In operation the several levers are moved so that the slides of theseveral openings permit the sand to pass through the same onto the apexof the series of the companion plates H Hbelow. The sand then furthercontinues down the inclined grooves or channels presented by theeurvedflanges of said plates and gradually and regularly sifts throughthe opening between said flanges and spreads evenly on the ground. Therelative adjustment of each of the beams G will control the distancebetween the fianges of the plates H H, and consequently the amount ofsand fed or delivered between the same.

By having the slides of the outer openings b operated byindependentlevers the delivery of sand from the extended portions of the fronthopper may be suspended irrespective of the central opening. It willtherefore be apparent that the outer openings can be utilized to deliverthe sand close to walls, in corners, or other places inaccessible to thecentral openings, b b, and rear openings, 1) b, in line therewith.

The construction and operation of the beams F G and plates H H insurethe delivery of the sand in a thin spray or sheet, and additionallyenable the employment of substances other than sand, as, for instance,pulverized ashes, &c.

While in the drawings I have represented the machine as being providedwith shafts K K and side carrying-wheels, L L, to adapt the machine foruse in connection with a horse or horses, still it will be desirable insome instances to use only a pivoted draft bail or tongue to enable themachine to be drawn along by hand. In case of the employment of saidbail or tongue, as noted, the latter will be provided with a wheel andside chains to brace the same and divide the strain.

I claim- The combinat-ion, in a sanding-machine, of a suit-able troughor receptacle provided with openings in its bottom, and plates H H,having triangular ribs, conjointly forming broadcast-channels, one ofsaid plates being adjustable relative to the other, hand devices foradjusting said plates, and cut-off devices for 0011- trolling the feedthrough the openings, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

BEAUMAN BUTLER. Witnesses:

P. L. PIERCE, L. V. MENUT.

